| original |
Middle Precambrian |
|
Canada(Ontario) |
Barghoorn,E.S. et al. Microorganisms from the Gunflint Chert. |
1965 |
| details |
Middle Precambrian |
|
Canada(Ontario) |
Schopf,J.W. Recent advances in Precambrian paleobiology |
1969 |
| details |
Precambriam |
|
Canada(Ontario) |
Schopf,J.W. Organically preserved Precambrian microorganisms. |
1970 |
| details |
Middle Precambrian |
|
Canada(Ontario) |
Schopf,J.W. Precambrian micro-organisms and evolutionary events, prior to the origin of vascular plants. |
1970 |
| details |
Proterozoic |
|
Nd |
Krylov,I.N. et al. The oldest traces of life on earth. |
1975 |
| details |
Precambriam |
|
Canada(Ontario) |
Awramik,S.M. et al. The Gunflint Microbiota. |
1977 |
| details |
Middle Algonkian |
|
Canada(Ontario) |
Nautiyal,A.C. Stratigraphic and palaeogeographic significance of microplanktons, cyanophycean algae and fungal remains in metallic ore-bearing Algonkian sediment. |
1987 |
| details |
Middle Precambrian |
|
Canada(Ontario) |
Kalgutkar,R.M. et al. Synopsis of fossil fungal spores, mycella and fructifications. |
2000 |